In this study, sago wastes were investigated for its potential in removing Zn from aqueous solution. The equilibrium adsorption level has been studied under varying conditions of time, initial metal ion concentration, adsorbent dose, particle size and pH. The adsorption parameters were analyzed using Freundlich and Langmuir models. Kinetics of adsorption of Zn on adsorbents were determined and ...

background: the rapid increase in agricultural and industrial development has made heavy metal pollution a serious environmental problem and public health threat; therefore, removal of heavy metals from water is important. the current study prepared dnph@sds@fe3o4 nanoparticles as a novel and effective adsorbent for removal of hg(ii) ions from an aqueous solution. methods: a selective adsorbent...

One of the wastewaters from tanning industry (soak liquor) contains 0.4 g/L of dissolved protein. During coagulation and flocculation 41% of protein was removed. A suggestion has been made to remove the residual protein by adsorption technique. The optimum conditions for adsorption of Bovine Serum Albumin (BSA) on rice bran based activated carbon (RBAC) were arrived. Maximum adsorption of BSA t...

Rice husk carbon (RHC) has been prepared from rice husk impregnated with 50% H3P04 and carbonised at 300°C. Its adsorption capacity has been tested for the decolourization of wastewater containing safranine and methylene blue. The effect of system variables such as concentration, temperature, pH, contact time, adsorbent dosage and particle size are investigated. Removal of dye has been found to...

background: the presence of lead in natural waters has become an important issue around the world. lead has been identified as a highly toxic metal that can cause severe environmental and public health problems and its decontamination is of utmost importance. the aim of this work was to evaluate the adsorption of lead (pb(ii)) on waste tea leaves as a cheap purification method. methods: in this...

results the batch kinetics experiments showed that nom adsorption by the adsorbents followed the pseudo-second order model. results showed that the acidic ph is optimum for adsorption of nom by smz. conclusions the findings of this study show that natural zeolite modified with sodium dodecyl sulfate, as a cationic surfactant, is a promising adsorbent for removal of nom. materials and methods in...

pollution of water resources by various pollutants is nowadays a global environmental issue. among the different type of water pollutants, dye represents a major polluting group. in this study, azolla filiculides roots have been used for adsorption of malachite green (mg), a cationic dyed from aqueous solution. in this study, effects of operating parameters such as initial concentration of dye ...

In this work author presented the up-to-date development on the various non-conventional low cost biomass adsorbent for the removal of inorganic/organic pollutants from aqueous solution. Author also presented the adsorptive properties of various agricultural by-products such as rambai tree leaves in the removal of Hg (II), castor hull in Zn (II) and Cd (II) removal, physic seed in heavy metal i...

The removal of copper (II) ion by using ultrasound pre-treatment to increase the pores structure and surface area on peanut husk powder via direct sonication (ultrasound probe) and indirect ultrasound (ultrasound bath) at powder level 3.5 W. In previous studies, researchers had applied ultrasound simultaneous with adsorption process. This method is not suitable to treat huge amount of heavy met...